15.83 Consider the titration of 25.0 mL of 0.0200 M H,CO3 with 0.0250 M KOH. Calculate the pH after the addition of each of the following volumes of base: (a) 10.0 mL (b) 20.0 mL (c) 30.0 mL (d) 40.0 mL (e) 50.0 mL

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Chapter1: Chemical Foundations
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Can you please answer question 15.83 and all of the sub problems and show all of the steps to the solution

### Titration Problems and Calculations

**15.82**  
Consider the titration of 50.0 mL of a 0.100 M solution of the protonated form of the amino acid alanine (\( \text{H}_2\text{A}^+ \); \( K_{a_1} = 4.6 \times 10^{-3} \), \( K_{a_2} = 2.0 \times 10^{-10} \)) with 0.100 M NaOH. Calculate the pH after the addition of each of the following volumes of base:  
(a) 10.0 mL  
(b) 25.0 mL  
(c) 50.0 mL  
(d) 75.0 mL  
(e) 100.0 mL  

**15.83**  
Consider the titration of 25.0 mL of 0.0200 M \(\text{H}_2\text{CO}_3\) with 0.0250 M KOH. Calculate the pH after the addition of each of the following volumes of base:  
(a) 10.0 mL  
(b) 20.0 mL  
(c) 30.0 mL  
(d) 40.0 mL  
(e) 50.0 mL  

**15.84**  
The equivalence point was reached in titrations of three unknown acids at pH 9.16 (acid A), 8.88 (acid B), and 8.19 (acid C).  
(a) Which is the strongest acid?  
(b) Which is the weakest acid?
Transcribed Image Text:### Titration Problems and Calculations **15.82** Consider the titration of 50.0 mL of a 0.100 M solution of the protonated form of the amino acid alanine (\( \text{H}_2\text{A}^+ \); \( K_{a_1} = 4.6 \times 10^{-3} \), \( K_{a_2} = 2.0 \times 10^{-10} \)) with 0.100 M NaOH. Calculate the pH after the addition of each of the following volumes of base: (a) 10.0 mL (b) 25.0 mL (c) 50.0 mL (d) 75.0 mL (e) 100.0 mL **15.83** Consider the titration of 25.0 mL of 0.0200 M \(\text{H}_2\text{CO}_3\) with 0.0250 M KOH. Calculate the pH after the addition of each of the following volumes of base: (a) 10.0 mL (b) 20.0 mL (c) 30.0 mL (d) 40.0 mL (e) 50.0 mL **15.84** The equivalence point was reached in titrations of three unknown acids at pH 9.16 (acid A), 8.88 (acid B), and 8.19 (acid C). (a) Which is the strongest acid? (b) Which is the weakest acid?
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